One objection to slavery that stemmed from the Second Great Awakening was that slavery brought too many people to the United States.
would bring about a mixing of the races.
denied the humanity of enslaved people.
took jobs away from immigrant workers.

b, would bring about a mixing of the races.

Explanation:

I just did this on edge2020

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.